<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			*{
				margin: 0;
				padding: 0;
			}
			#wrap{
				width: 400px;
				height: 300px;
				border: 1px solid;
				margin:100px auto;
				
				display: flex;
			}
			#wrap > .item{
				height: 50px;
				background: pink;
				text-align: center;
				line-height: 50px;
				
				/*flex-shrink: 1;
				flex-grow: 1;
				flex-basis: 0;*/
				flex: 300;
			}
			
		</style>
	</head>
	<body>
		<div id="wrap">
			<div class="item">11</div>
			<div class="item">222</div>
			<div class="item">3333</div>
			<div class="item">44444</div>
			<div class="item">555555</div>
		</div>
	</body>
</html>
